CN106787568B - Compressor and air conditioner - Google Patents
Compressor and air conditioner Download PDFInfo
- Publication number
- CN106787568B CN106787568B CN201710207271.8A CN201710207271A CN106787568B CN 106787568 B CN106787568 B CN 106787568B CN 201710207271 A CN201710207271 A CN 201710207271A CN 106787568 B CN106787568 B CN 106787568B
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- stator
- compressor
- motor
- slot
- groove
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The invention discloses a compressor and an air conditioner, wherein the compressor (300) comprises a driving motor, the motor comprises a plurality of laminated stator punching sheets (1), the stator punching sheets are circular ring sheets, a plurality of stator grooves (2) which penetrate axially and are arranged at intervals along the circumferential direction are arranged in the circular ring surfaces of the stator punching sheets, the stator grooves are rectangular grooves extending along the radial direction, and corners of the rectangular grooves are formed into round chamfer angles (21). Wherein, the short side length D=1.6mm ~ 4.2mm of stator groove, the fillet radius of round chamfer is R, and satisfies: d/r=2 to 4. The invention designs the shape of the rectangular stator slot in a targeted manner, optimizes the round chamfer of the design corners on the basis of not changing the basic outline of the rectangle, can increase the minimum width and area of the stator teeth, reduces the magnetic density of the stator teeth shoes and improves the conduction of main magnetic flux. In addition, the round corner design can enable the round corner to be matched with the process round corner of the winding conductor in the groove, so that the area of the groove is utilized to the maximum extent, the motor has higher full rate of the stator groove, and the motor efficiency is finally improved.
Description
Technical Field
The invention belongs to the field of compressors, and particularly relates to an air conditioner and a compressor thereof.
Background
Noise is one of the most important indexes for evaluating the comfort of an air conditioner, the noise of the air conditioner mainly comes from a compressor used by the air conditioner, and a motor for driving the compressor is an excitation source of the noise of the compressor, so that the noise reduction of the air conditioner compressor and the motor thereof is an important means and mode for improving the comfort requirement of the air conditioner. In addition, with the continuous improvement of standards of energy conservation and emission reduction requirements and environmental protection requirements, the energy efficiency requirements of the air conditioner and the compressors used by the air conditioner in the market are synchronously improved, namely, the efficiency of the compressor motor is also more strictly required.
In the prior art, a motor stator generally adopts a stator core structure with multiple rectangular slots, so that excitation factors influencing compressor noise, such as motor air gap flux density harmonic waves, cogging torque and the like, can be effectively improved. By using the motor with the structure, the noise of the compressor can be greatly improved. In the existing multi-slot rectangular slot motor technology, for convenience in manufacturing, the segmented enameled flat copper winding wire is axially inserted from the stator core and connected into a complete winding to form an armature coil, so that a closed slot structure can be realized by the stator slot, namely adjacent stator teeth are connected, and the effects of reducing cogging torque and improving noise can be achieved. However, the closed slot structure increases the stator tooth leakage flux, and affects the conduction of the armature magnetic field and the main magnetic flux, which makes it difficult to achieve high efficiency of the motor.
In addition, the stator slot of the motor core is matched with the shape of the enamelled copper flat winding wire, the shape of the stator slot is designed to be approximately rectangular (namely, parallel slots), and two adjacent stator slots define trapezoidal stator teeth. In order to increase the slot area, the minimum width of the trapezoidal stator teeth is usually set to be too small in the prior art, and as a result, the tooth part is too saturated in magnetic density, so that the iron loss of the motor is greatly improved, the transmission of main magnetic flux is also influenced, the copper loss is increased due to the improvement of the running current of the motor, and finally, the motor is difficult to realize high efficiency, and the requirement of high energy efficiency is difficult to achieve.
Disclosure of Invention
In order to overcome the defects or shortcomings in the prior art, the invention provides an air conditioner and a compressor thereof, and the working efficiency of the compressor can be improved.
In order to achieve the above object, the present invention provides a compressor, including a motor for driving the compressor, the motor including a plurality of laminated stator laminations, the stator laminations being annular sheets, a plurality of stator slots extending through in an axial direction and arranged at intervals in a circumferential direction being provided in an annular surface of the stator laminations, the stator slots being rectangular slots extending in a radial direction, corners of the rectangular slots being rounded corners;
wherein, the short side length D=1.6mm ~ 4.2mm of stator groove, the fillet radius of round chamfer is R, and satisfies: d/r=2 to 4.
Preferably, the stator winding is penetrated and wound in the stator slot, and the fillet radius of the conductor process fillet of the stator winding is smaller than that of the circular chamfer of the stator slot.
Preferably, the fillet radius r=0.5 mm to 2mm of the round chamfer.
Preferably, the stator punching sheet has an outer diameter d1 and an inner diameter d2, and satisfies the following conditions: d1 =80 mm to 160mm, d 2/d1=0.5 to 0.6.
Preferably, the number of the stator slots in each stator punching sheet is 36-72.
Preferably, the corner radii of the four circular chamfers of the rectangular stator groove are the same.
Preferably, a communication port is formed at the radial inner end of the stator slot, the communication port is communicated with the central through hole of the stator punching sheet along the axial direction, the width of the circumferential opening of the communication port at the inner periphery of the stator punching sheet is a, the length of the short side of the stator slot is D, and the requirements are satisfied: a/d=0.1 to 0.5.
Preferably, the motor includes a stator including an armature coil and the stator core laminated by a plurality of stator laminations, the armature coil being mounted in the stator slot, and a rotor including a rotor core disposed in a center through hole of the stator laminations and a magnet mounted in the rotor core.
Preferably, the armature coil includes an enameled copper flat winding wire wound in the stator slot as a stator winding wire.
In addition, the invention also provides an air conditioner which comprises the compressor.
According to the technical scheme, in the stator core of the driving motor of the air conditioner compressor, the corners of the rectangular stator grooves are formed into round chamfers and can be matched with the process fillets of the winding conductors in the grooves, so that the area of the grooves is utilized to the maximum extent, the motor has higher full rate of the stator grooves, meanwhile, the width and the area of the stator teeth shoes are increased by the round chamfers, the magnetic density of the stator teeth shoes is reduced, the conduction of main magnetic flux is improved, and the working efficiency of the motor is finally improved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention. In the drawings:
fig. 1 is a schematic view of a structure of a motor of a compressor according to a preferred embodiment of the present invention;
fig. 2 is a schematic structural view of a stator core according to a first preferred embodiment of the present invention, in which stator slots are provided with communication ports to communicate with a central through hole;
fig. 3 is a schematic structural view of a stator core according to a second preferred embodiment of the present invention, in which corners of stator slots are provided with rounded corners;
fig. 4 and 5 are partial enlarged views showing two preferred structures of the communication port of the stator slot, respectively;
FIG. 6 is a partial enlarged view showing a stator slot with rounded corners;
fig. 7 is a schematic structural view of a compressor and a motor part thereof in an air conditioner according to a preferred embodiment of the present invention.
Description of the reference numerals
1. Stator punching sheet 2 stator slot
3. Center through hole of communication port 4
5. Stator teeth 10 stator core
20. Armature coil of insulating material 30
40. Rotor core 50 magnet
21. Round chamfer 51 stator tooth shoe
100. Stator 200 rotor
300. Compressor 301 crankshaft
302. Main bearing 303 cylinder
304. Piston 305 auxiliary bearing
OO' radial midline
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
In the present invention, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the positional relationship of the various components with respect to one another in the vertical, vertical or gravitational directions. "inner and outer" generally refer to the term for the relative positional relationship between the inner and outer parts with respect to the radial direction of the motor shaft.
Aiming at various factors influencing the efficiency of the motor in the compressor in the prior art, the motor of the compressor, in particular to the stator core part of the motor, is particularly improved in order to effectively improve the working efficiency of the motor. According to a first aspect of the present invention, there is provided a stator core, as shown in fig. 2 and 4, which comprises a plurality of laminated stator laminations 1, the thickness of a single stator lamination 1 is generally not greater than 0.5mm, the stator lamination 1 is a circular ring plate with a central through hole 4, a plurality of stator slots 2 penetrating axially and arranged at intervals circumferentially are provided in the circular ring surface of the stator lamination 1, adjacent stator slots 2 define stator teeth 5, the radially inner ends of the stator teeth 5 are stator teeth shoes 51, and the communication ports 3 are spaced apart from the stator teeth 51 of the stator teeth 5 on both sides.
Wherein, for matching winding, the stator slot 2 is formed as a substantially rectangular slot extending along the radial direction, and the short side length of the stator slot 2 is D. In particular, the radially inner end of the stator slot 2 is also formed with a communication port 3, the communication port 3 is axially penetrated and radially communicates with the central through hole 4, the circumferential opening width of the communication port 3 at the inner periphery of the stator lamination 1 is a, and satisfies: a/d=0.1 to 0.5.
As described above, in order to solve the problem of the increased leakage of the stator teeth 5 and the influence on the conduction of the armature magnetic field and the main magnetic flux caused by the stator slot having the closed slot structure shown in fig. 3, the present invention particularly designs the communication port 3 based on the closed slot structure, that is, the stator slot 2 has an open structure. The radial inner side of the stator slot 2 is provided with an opening, so that the cogging torque can be improved, namely the noise is increased, but the inventor obtains on the basis of multi-party trial and error, summarizing and repeated test and calculation, and under the condition that the width of the opening is limited in a smaller area, the improvement effect of the cogging torque is not obvious, but the magnetic leakage of the stator teeth 5 can be greatly reduced, and the motor efficiency is greatly improved.
Specifically, when the circumferential opening width of the communication port 3 at the inner periphery of the stator lamination 1 is a, and: when a/d=0.1 to 0.5, especially a/d=0.2 to 0.5, the arrangement of the communication port 3 improves the cogging torque only slightly (about 2% amplitude) through electromagnetic calculation, that is, the noise raising effect is very little, but the magnetic flux leakage of the stator teeth 5 can be reduced to a great extent, and finally the motor efficiency is improved greatly (0.6%).
Referring to fig. 4, the communication ports 3 are preferably rectangular communication ports, that is, the circumferential opening width of each of the communication ports 3 is the same. Preferably, the communication port 3 and the stator slot 2 have a common radial center line OO', i.e. the communication port 3 is provided in the middle of the radially inner end of the stator slot 2 such that the widths of the stator teeth shoes 51 of the respective stator teeth 5 are the same.
Referring to fig. 5, in the communication port 3 of another structural form, the communication port 3 is formed in a radially outward open shape, that is, a circumferential opening width a of the communication port 3 at the inner periphery of the stator lamination 1 is a minimum opening width of the communication port 3, and a circumferential opening width b of the communication port 3 at the radially inner end wall of the stator slot 2 is a maximum opening width of the communication port 3. By increasing the opening width of the radial outer end of the communication port 3, according to the principle that magnetic flux walks along the minimum resistance direction, the circumferential opening width b of the communication port 3 is increased, so that the magnetic leakage of the large reluctance magnetic circuit of the stator tooth shoe 51 can be reduced, and the working efficiency of the motor is further improved. Wherein, in order to enlarge the circumferential opening width b and meet the requirements of convenient processing and wire winding fixation, the numerical value or ratio setting between each dimension parameter preferably satisfies: a/b=0.5 to 0.8, and/or b/d=0.2 to 0.5.
In both fig. 4 and 5, the short side length D of the stator slot 2 is preferably 1.6mm to 4.2mm. According to the common power range (0.5W-5000W) of the existing air conditioner compressor, the outer diameter d1 of the stator punching sheet 1 of the motor is usually controlled in the range of 80 mm-160 mm. For the multi-slot rectangular slot structure motor of the present invention, it is generally required to ensure that the stator slot 2 has a sufficient slot cross-sectional area to accommodate at least 4 or more stator windings (e.g., enameled copper flat winding wires), so that the ratio of the inner diameter d2 to the outer diameter d1 of the stator lamination is generally set to 0.5-0.6, i.e., the inner diameter d2 of the stator lamination 1 is controlled to be in the range of 40-96 mm. In addition, the compressor 300 is typically operated at a dc bus voltage of 300V to 500V, and the motor also tends to have to set appropriate counter-potential parameters so that the motor operates in a high efficiency condition. To obtain a suitable counter potential parameter, the number of stator slots 2 should preferably be controlled in the range of 36-72.
Thus, the preferred length range of the short side length D of the rectangular stator slot 2 is 0.9mm to 4.2mm, depending on the above parameters and taking into account the reasonable distribution of the magnetic flux density of the stator teeth 5. On the other hand, the multi-slot rectangular slot structure motor usually uses a plurality of sections of enamelled copper flat winding wires to form the armature coil 30 through limited times of connection, so the invention also accords with the national standard GB/T7095.1-2008 for the enamelled copper flat winding wires. In this specification, the minimum conductor short side length of the enameled copper flat winding wire is 0.8mm, and the nominal paint film thickness is 0.085mm. In order to meet the voltage-resistant requirement of the motor, PET material with the thickness of 0.125-0.25 mm is also inserted into the stator slot as the insulating material 20, see figure 1. The above material is inserted into the stator slot 2 by a clearance fit of about 0.05mm-0.1 mm. The above dimensions are superimposed to limit the width of the short side of the rectangular stator slot 2 to more than 1.6mm, so that it is preferable to find the length D of the short side of the rectangular stator slot 2 to be in the range of 1.6mm to 4.2mm as described above.
In summary, the compressor 300 and the motor using the stator core according to the first aspect of the present invention can achieve the advantages of low cogging torque of the motor, less leakage of magnetic flux from the stator teeth 5, low noise, and high working efficiency.
According to a second aspect of the present invention, there is also provided another stator core, as shown in fig. 3 and 6, the stator core 10 also includes a plurality of laminated stator laminations 1, the thickness of a single stator lamination 1 is generally not greater than 0.5mm, the stator lamination 1 is preferably a circular ring, and a plurality of stator slots 2 extending axially therethrough and arranged circumferentially at intervals are provided in the circular ring surface of the stator lamination 1. Wherein the stator groove 2 is a rectangular groove extending in the radial direction, and the corners of the rectangular groove are particularly formed into round chamfers 21, i.e., rounded.
Therefore, in order to change the problems that the minimum width of the trapezoidal stator teeth 5 (as shown in fig. 4 to 6) in the prior art is too small, so that the magnetic density of the teeth is too saturated, thereby greatly improving the iron loss and affecting the motor efficiency, the invention purposefully designs the shape of the rectangular stator slot 2, optimizes the round chamfer 21 of the design corner on the basis of not changing the basic outline of the rectangle, can increase the minimum width and area of the stator teeth 5, reduces the magnetic density of the stator teeth shoes 51, and improves the conduction of main magnetic flux. In addition, the rounded design can enable the rounded corners 21 to be matched with the process rounded corners of the winding conductors in the slots, so that the slot area is utilized to the maximum extent, the motor has higher full rate of stator slots, and the motor efficiency is finally improved.
In theory, stator winding is penetrated and wound in the stator groove 2, and at the moment, the fillet radius of a conductor process fillet of the stator winding is smaller than that of a round chamfer 21 of the stator groove 2, so that the stator winding can be clung to the arc-shaped wall surface of the round chamfer 21, and the full rate of the stator groove is improved.
Specifically, when the shape and size of the stator slot 2 are matched with the shape and size of the section of the enamelled copper flat winding wire, the slot area can be utilized to the maximum, and a higher slot filling rate is ensured, wherein the most important element is the matching of the conductor process fillet size.
The conductor fillet of the enamelled copper flat winding wire is specified according to national standard GB/T7095.1-2008: the length range of the short side of the conductor is between 0.8 and 1.0mm, and the radius of the round angle of the conductor is 1/2 of that of the short side of the conductor; the length range of the short side of the conductor is 1.0-1.60 mm, and the radius of the conductor fillet is 0.5mm; the length range of the short side of the conductor is 1.6-2.24 mm, and the radius of the conductor fillet is 0.65mm; the length of the short side of the conductor ranges from 2.24mm to 3.4mm, and the radius of the round angle is 0.8mm.
After the dimensions of the conductor fillet radius superimposed paint film, the insulating material 20 and the process gap, the fillet size of the rectangular stator slot 2 can be preferably obtained, and the short side length D of the rectangular stator slot 2 defines the conductor short side length, so that the ratio of the short side length D of the rectangular stator slot 2 to the fillet radius R can be preferably obtained to satisfy the relationship: d/r=2 to 4, i.e. the fillet radius of the rounded chamfer 21 should be at most not more than D/2, at least more than D/4, than the conductor process fillet.
As described above, the short side length D of the stator slot 2 is preferably 1.6mm to 4.2mm when applied to the compressor motor of the general air conditioner, and the description thereof will not be repeated. In this case, the round radius R of the round chamfer 21 of the stator groove 2 is preferably 0.5mm to 2mm, respectively.
Wherein the rectangular stator slot 2 is preferably provided with four rounded corners 21, each rounded corner radius being identical, to increase the stator slot filling rate. The cross-sectional area of the stator slot 2 is likewise set so as to be able to pass through at least four stator windings in parallel.
It can be seen that two adjacent stator slots 2 define stator teeth 5, and the shape and size of the stator slots 2 limit the size of the stator teeth 5, so that the rounded corners of the stator slots 2 are reasonably sized, the slot filling rate of the motor is ensured to be unchanged, the width of the stator teeth 5 is increased as much as possible, and the tooth density is reduced.
Further, the stator core according to the second aspect of the present invention may be integrated with the design of the stator core according to the first aspect of the present invention shown in fig. 2, that is, the radially inner end of the stator slot 2 is formed with the communication port 3, and the communication port 3 is communicated in the axial direction and in the radial direction with the center through hole 4. When the circumferential opening width of the communication port 3 at the inner periphery of the stator lamination 1 is a and the short side length of the stator slot 2 is D, it is preferable to satisfy: a/d=0.1 to 0.5, more preferably a/d=0.2 to 0.5. The advantages that this brings are as mentioned above and are not described in detail here.
In summary, the stator core according to the second aspect of the present invention can be applied to the compressor 300 and the motor thereof, and has the advantages of low noise and high working efficiency.
Fig. 1 is a schematic structural view of a motor for a compressor 300 according to a preferred embodiment of the present invention, which employs a stator core 10 according to a first aspect of the present invention shown in fig. 2. Wherein the motor is composed of a stator 100 and a rotor 200. The stator 100 is composed of a stator core 10, an insulating material 20, and an armature coil 30. The stator core 10 is formed by laminating a plurality of stator laminations 1, and the stator laminations 1 have a plurality of stator slots 2 circumferentially spaced apart from each other. An armature coil 30 composed of an enameled copper flat winding wire as a stator winding and an insulating material 20 are inserted into the stator slot 2. The rotor 200 is composed of a rotor core 40 placed in the center through hole 4 and magnets 50 fixed in magnet slots of the rotor core 40, thereby constituting a permanent magnet synchronous motor as shown in the drawing, and can be used to drive a compressor 300, as shown in fig. 7.
In fig. 7, an air conditioner compressor 300 is driven to operate by the motor of the present invention. As shown, the compressor 300 of the air conditioner further includes compression members such as a cylinder 303, a main bearing 302, a sub bearing 305, a crankshaft 301, and a piston 304. When the motor works, the stator 100 of the motor is powered on to drive the rotor to rotate, so that the crankshaft 301 is driven to rotate, and then the crankshaft 301 drives the piston 304 in the cylinder 303 to linearly reciprocate. Other configurations and operations of the compressor 300 are known to those of ordinary skill in the art and will not be described in detail herein.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and within the scope of the technical concept of the present invention, many simple modifications may be made to the technical solution of the present invention, for example, the communication port 3 is not limited to the illustrated rectangular, radially outward bell mouth shape, and may also be other shape structures such as a gourd shape, a spindle shape, etc., and these simple modifications all fall within the scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.
Claims (8)
1. The compressor comprises a motor for driving the compressor (300), and is characterized by comprising a plurality of laminated stator punching sheets (1), wherein the stator punching sheets (1) are annular sheets, a plurality of stator grooves (2) penetrating axially and arranged at intervals circumferentially are arranged in the annular surface of the stator punching sheets (1), the stator grooves (2) are rectangular grooves extending radially, and corners of the rectangular grooves are formed into round chamfer angles (21);
wherein, the short side length D=1.6mm ~ 4.2mm of stator groove (2), the fillet radius of round chamfer (21) is R, and satisfies: d/r=2 to 4;
the stator slot (2) radially inner end is formed with intercommunication mouth (3), intercommunication mouth (3) link up along the axial and along radial intercommunication central through-hole (4) of stator towards piece (1), intercommunication mouth (3) are in the circumference opening width of stator towards piece (1) inner periphery department is a, the minor face length of stator slot (2) is D, and satisfies: a/d=0.1 to 0.5, the outer diameter of the stator punching sheet (1) is D1, the inner diameter is D2, and the following conditions are satisfied: d2/d1=0.5 to 0.6;
stator winding is penetrated and wound in the stator groove (2), and the fillet radius of a conductor process fillet of the stator winding is smaller than that of a round chamfer (21) of the stator groove (2).
2. Compressor according to claim 1, characterized in that the fillet radius R = 0.5-2 mm of the circular chamfer (21).
3. Compressor according to claim 1, characterized in that the outer diameter d1=80-160 mm of the stator lamination (1).
4. A compressor according to claim 3, wherein the number of stator slots (2) in each stator lamination (1) is 36-72.
5. Compressor according to claim 1, characterized in that the four round chamfers (21) of the rectangular stator groove (2) have the same corner radius.
6. The compressor according to any one of claims 1 to 5, wherein the motor includes a stator (100) and a rotor (200), the stator (100) includes an armature coil (30) and a stator core (10) formed by laminating a plurality of the stator laminations (1), the armature coil (30) is mounted in the stator slot (2), and the rotor (200) includes a rotor core (40) disposed in a center through hole (4) of the stator laminations (1) and a magnet (50) mounted in the rotor core (40).
7. The compressor according to claim 6, wherein the armature coil (30) includes an enameled copper flat winding wire wound as a stator winding wire in the stator slot (2).
8. An air conditioner, characterized in that it comprises a compressor (300) according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710207271.8A CN106787568B (en) | 2017-03-31 | 2017-03-31 | Compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710207271.8A CN106787568B (en) | 2017-03-31 | 2017-03-31 | Compressor and air conditioner |
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| Publication Number | Publication Date |
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| CN106787568A CN106787568A (en) | 2017-05-31 |
| CN106787568B true CN106787568B (en) | 2023-08-08 |
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| CN201710207271.8A Active CN106787568B (en) | 2017-03-31 | 2017-03-31 | Compressor and air conditioner |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| FR3082373B1 (en) * | 2018-06-07 | 2021-12-24 | Leroy Somer Moteurs | ROTATING ELECTRIC MACHINE STATOR |
| CN114244051A (en) * | 2021-12-27 | 2022-03-25 | 厦门金龙汽车新能源科技有限公司 | High-efficiency permanent magnet synchronous motor |
| CN114811741B (en) * | 2022-05-13 | 2024-01-19 | 宁波奥克斯电气股份有限公司 | Design method and structure of air conditioner gravity center height and supporting surface radius and air conditioner |
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|---|---|---|---|---|
| JP2000233201A (en) * | 1999-02-15 | 2000-08-29 | Nkk Corp | Method of rolling shaped blooms for wide flange steel and forming groove |
| JP2010035294A (en) * | 2008-07-28 | 2010-02-12 | Hitachi Ltd | Permanent magnet synchronous motor |
| CN105634160A (en) * | 2016-01-21 | 2016-06-01 | 江阴市申兴塑料包装有限公司 | In-wheel motor for scooter |
| CN105846630A (en) * | 2016-05-27 | 2016-08-10 | 广东美芝制冷设备有限公司 | Permanent magnet motor and compressor with permanent magnet motor |
| CN206640484U (en) * | 2017-03-31 | 2017-11-14 | 广东美芝制冷设备有限公司 | Compressor and air-conditioning |
-
2017
- 2017-03-31 CN CN201710207271.8A patent/CN106787568B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000233201A (en) * | 1999-02-15 | 2000-08-29 | Nkk Corp | Method of rolling shaped blooms for wide flange steel and forming groove |
| JP2010035294A (en) * | 2008-07-28 | 2010-02-12 | Hitachi Ltd | Permanent magnet synchronous motor |
| CN105634160A (en) * | 2016-01-21 | 2016-06-01 | 江阴市申兴塑料包装有限公司 | In-wheel motor for scooter |
| CN105846630A (en) * | 2016-05-27 | 2016-08-10 | 广东美芝制冷设备有限公司 | Permanent magnet motor and compressor with permanent magnet motor |
| CN206640484U (en) * | 2017-03-31 | 2017-11-14 | 广东美芝制冷设备有限公司 | Compressor and air-conditioning |
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| CN106787568A (en) | 2017-05-31 |
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